import axios from 'axios'

export default function ajax (url,data={},type='GET') {
    return new Promise(function (resolve,reject) {
    let promise
    if (type === 'GET') {
        // 准备url query参数数据
        let dataStr = '' //数据拼接字符串 
        Object.keys(data).forEach(key => {
          dataStr += key + '=' + data[key] + '&'
        })
        if (dataStr !== '') {
          dataStr = dataStr.substring(0, dataStr.lastIndexOf('&'))
          url = url + '?' + dataStr
        }
        // 发送get请求
        promise = axios.get(url)
      } else {
        // 发送post请求
        promise = axios.post(url, data)
      }
      promise.then(function (response) {
        resolve(response.data)
      }).catch(function (error) {
        reject(error)
      })
    })
}